Mitsubishi has released a video showing how the plug-in hybrid system in the upcoming Mitsubishi Outlander PHEV works.
“The Mitsubishi Plug-in Hybrid EV System provides energy conservation, and at the same time offers driving that is comfortable, safe and reliable.
When driving at medium- to low-speeds, the Mitsubishi Plug-in Hybrid EV System stays in EV Mode, driving the vehicle through its electric motors using electricity from the drive battery.
When the remaining energy in the drive battery gets low, the Mitsubishi Plug-in Hybrid EV System’s switches to Series Hybrid Mode where its gasoline engine automatically starts and generates power for the electric motors.
When driving at high speeds, the Mitsubishi Plug-in Hybrid EV System switches to Parallel Hybrid Mode which also uses the power of the gasoline engine to drive the vehicle as its engine operates more efficiently than its electric motors at high RPM.
Furthermore, when a vehicle with the Mitsubishi Plug-in Hybrid EV System is decelerating, it switches to the Regenerative Mode which uses the motors as power generators to recharge the drive battery. In this way, the Mitsubishi Plug-in Hybrid EV System optimally controls each of the driving modes so it provides the versatility to drive as a 100% electric vehicle, use the engine to charge the drive battery, or drive using the motors and the engine at the same time, based on driving conditions.”
And here is an image from Mitsubishi showing the different components and layout of the drivetrain system in the Outlander PHEV.